{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T18:10:20Z","timestamp":1790446220893,"version":"4.1.0"},"reference-count":30,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2020,5,1]],"date-time":"2020-05-01T00:00:00Z","timestamp":1588291200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Thyroid\u00ae"],"published-print":{"date-parts":[[2020,5]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>The correlation between the injured recurrent laryngeal nerve (RLN) with incomplete loss of signal (LOS) and the outcomes of vocal cord function is still not well understood. This large cohort validation study was aimed to evaluate the effectiveness of the warning criterion, the reduction of the R2p\/R2d ratio, in neuromonitoring during thyroidectomy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A total of 1108 consecutive patients (1764 nerves) with normal vocal cord function undergoing monitored thyroidectomy were included. Standardized intraoperative neuromonitoring procedures were strictly followed, after complete dissection of RLN, the exposed RLN was routinely stimulated at the lowest proximal end (R2p signal) and the most distal end near the laryngeal entry point (R2d signal). If the reduction of the R2p\/R2d ratio (([R2d \u2212 R2p]\/R2d)\u2009\u00d7\u2009100%) reached &gt;20%, the whole exposed RLN would be checked to pinpoint the injured area of the nerve.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Visual anatomical integrity of the RLN was ensured in all 1764 nerves. Eighteen nerves had complete LOS, and the other 97 nerves had incomplete LOS where the reduction of the R2p\/R2d ratio ranged from 21% to 84%. Postoperative temporary vocal cord paralysis (VCP) was noted in 11 (61.1%) RLNs with complete LOS and 16 (16.5%) RLNs with incomplete LOS, where the reduction of the R2p\/R2d ratio ranged from 63% to 84%. The positive predictive value of a R2p\/R2d ratio &gt;63% for postoperative VCP was 79.4%.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Testing and comparing the R2p and R2d signals were useful to detect RLN neurophysiologic injury, elucidating the mechanism of nerve injury and predicting vocal cord function. Determining R2p-R2d was found to be essential and can be applied in routine neuromonitoring thyroidectomy.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1089\/thy.2019.0361","type":"journal-article","created":{"date-parts":[[2019,12,27]],"date-time":"2019-12-27T15:32:56Z","timestamp":1577460776000},"page":"739-745","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":17,"title":["Correlation Between Electrophysiological Changes and Outcomes of Vocal Cord Function in 1764 Recurrent Laryngeal Nerves with Visual Integrity During Thyroidectomy"],"prefix":"10.1177","volume":"30","author":[{"given":"Qianqian","family":"Yuan","sequence":"first","affiliation":[{"name":"Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, P.R. 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China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng-Yu","family":"Chiang","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology-Head and Neck Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan."},{"name":"Faculty of Medicine, Kaohsiung Medical University College of Medicine, Kaohsiung, Taiwan."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2020,5,7]]},"reference":[{"key":"e_1_3_4_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s13304-010-0036-5"},{"key":"e_1_3_4_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.surg.2013.08.015"},{"key":"e_1_3_4_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.surg.2016.06.049"},{"key":"e_1_3_4_5_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.sla.0000132260.34503.02"},{"key":"e_1_3_4_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/bjs.9044"},{"key":"e_1_3_4_7_2","doi-asserted-by":"publisher","DOI":"10.1089\/thy.2013.0004"},{"key":"e_1_3_4_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.surg.2008.02.006"},{"key":"e_1_3_4_9_2","doi-asserted-by":"publisher","DOI":"10.1002\/lary.27359"},{"key":"e_1_3_4_10_2","doi-asserted-by":"publisher","DOI":"10.1097\/SLA.0b013e318294559d"},{"key":"e_1_3_4_11_2","first-page":"19","article-title":"Loss of signal in recurrent nerve neuromonitoring: causes and management","volume":"4","author":"Wu CW","year":"2015","unstructured":"Wu CW, , Wang MH, , Chen CC, , Chen HC, , Chen HY, , Yu JY, , Chang PY, , Lu IC, , Lin YC, , Chiang FY. 2015. 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